Fly-escape.



A. W. SALOKAR.

FLY ESCAPE.

APPLIOATION FILED AUO.2a.19o1.

Patented Nov. 17, 1908.

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...fu/1 annual ANDREW W. SALOKR, OF NEW BRIGHTON, MINNESOTA.

FLY-ESCAPE Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed August 23, 1907. Serial No. 389,828.

To all whom it may concern:

Bc it known that I, ANDREW W. SALOKAR, a citizen of the United States,residing at New Brighton, in the county of Ramsey and State ofMinnesota, have invented certain new and useful Improvements inFly-Escapes; and l do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved device orattachment for window screens, which is adapted to permit fiies toreadily escape from a room or other inclosure, but which will preventthem from entering through the said device.

To the above ends, the invention consists of the novel devices andcombinations of devices hereinafter described and defined in the claim.

The present invention is in the nature of an improvement on the devicedisclosed and claimed in my prior patent No. 831,380, of date September18th, 1906, entitled Fly escape.

The invention is illustrated in the accompanying drawings, wherein likecharacters indicate like parts throughout the several views.

Referring to the drawings; Figure l is an elevation looking at theinside of a screen and showing my improved ily escape device appliedthereto, with some parts broken away. Fig. 2 is a vertical section takenon the line ai? x2 of Fig. l. Fig. 3 is a sectional view taken on thesame line as Fig. 2, but showing the parts on a larger scale and withsome parts broken away; and Fig. 4 is an elevation looking at theoutside of the screen, showing the fly escape device or attachmentremoved therefrom, and with some parts broken away.

The numeral 1 indicates the frame, and the numeral 2 the reticulate wireportion of an ordinary window screen. For the application of theimproved fly escape device or attachment, the reticulate wire sheet 2 iscut away or slit and turned downward, as shown at 2a, and in line withthis opening, a rectangular frame or casing 3 is secured to the outerside of the frame 1 and screen 2. As shown, the casin 3 is provided withan outwardly eXtende bottom plate 3 that rests upon a supporting plate 4that is secured to the screen 2 by a short nutted bolt 5 and acooperating clamping bar 6. The top of the casing 3 is provided with adepending outer {iange 3", and with a depending inner flange 3. To theflange 3b is bolted, or otherwise rigidly secured, a toothed guide baror comb 7; and to the iiange 3C is secured the upturned inner edge of anoutwardly inclined guard plate 8, the projecting edge of whichterminates approximately at the depending end of the teeth of the uidecomb 7. A series of laterally spaced light catch rods 9 work freelybetween the teeth of the guide comb 7 and are loosely pivoted on asupporting rod 10, which rod extends longitudinally through the casing 3and is secured to the ends thereof. The free outwardly projecting endsof these catch rods 9 are held by gravity in a position close to thebottom plate 3a of the casing 3, and the said rods are so closely spacedthat a fly cannot pass between the same.

The numeral 11 indicates extension blocks which, as shown, are securedto the flanged ends of the casing 3.

With the device above described, flies at the interior of the buildingwill pass up the screen 2 until they come to the opening formed withinthe casing 3 below the guard plate 8, and they will then find a freeoutward passage until they come into engagement with the free ends ofthe catch rods 9. Very slight pressure against the free ends of thesecatch rods will raise the same so that the ies will find very easyoutward passage under the said rods. It is, however, evident that theflies' cannot pass inward because the rods cannot be raised from theexterior of the device by pressure against the rods.

In actual practice, the device above described has been found highlyeiiicient for the purposes had in view. It is of small cost, and may beeasily applied to screens as found in general use. The device abovedescribed may, of course, be applied to door screens, as well as towindow screens. It may even be a plied to a window sash or to anordinary oor.

What I claim is In a ily escape device, the combination with arectangular frame or casing having a bottom plate and an opening throughwhich the flies may pass, of a detachable guide comb secured to anddepending from the upper outer portion of said frame or asin a uard latunderl in said uide combigr a rgnultiplicitlf of olobel?`y posionedlaterally spaced gravity held catch rods, the inner and upper ends ofwhich are independently pivoted Within the said frame or casing, and thefree ends of which are Supl ported by said guard plate and overle andclosely engage the bottom plate of said frame or easing, substantiallyas and for the purposes sot forth.

In testimon f whereof I aliix my signature in presence of3 twoWitnesses.

ANDREW W. SALOKAR. Titnessesz H. D. KILGORE, M. E. RoNEY.

